I too would like to know where this supposed "Texas heart shot" comes from! It sure as hell is not from Texas!
Being a native Texan, I've only seen this once! And that was by accident, and as I recall it was aforeigner doing the shooting!
I don't, and never will need a deer that bad! I've heard all the excuses, "it was the only available shot", " biggest buck I've ever seen, so I took the chance!"
An irresponsible shot, is an irresponsible shot! Whether its at a trophy buck, or an old doe!